FMOV (general)

Floating-point move to or from general-purpose register without conversion

This instruction transfers the contents of a SIMD&FP register to a general-purpose register, or the contents of a general-purpose register to a SIMD&FP register.

Depending on the settings in the CPACR_EL1, CPTR_EL2, and CPTR_EL3 registers, and the current Security state and Exception level, an attempt to execute the instruction might be trapped.

Decode for all variants of this encoding

if !IsFeatureImplemented(FEAT_FP) then EndOfDecode(Decode_UNDEF); end; if ftype == '10' && opcode[2:1]::rmode != '11 01' then EndOfDecode(Decode_UNDEF); end; if ftype == '11' && !IsFeatureImplemented(FEAT_FP16) then EndOfDecode(Decode_UNDEF); end; let d : integer{} = UInt(Rd); let n : integer{} = UInt(Rn); let intsize : integer{} = 32 << UInt(sf); let fltsize : integer{} = if ftype == '10' then 64 else (8 << UInt(ftype XOR '10')); let part : integer = UInt(rmode[0]); var op : FPConvOp; case opcode[2:1]::rmode of when '11 00' => // FMOV if fltsize != 16 && fltsize != intsize then EndOfDecode(Decode_UNDEF); end; op = if opcode[0] == '1' then FPConvOp_MOV_ItoF else FPConvOp_MOV_FtoI; when '11 01' => // FMOV D[1] if intsize != 64 || ftype != '10' then EndOfDecode(Decode_UNDEF); end; op = if opcode[0] == '1' then FPConvOp_MOV_ItoF else FPConvOp_MOV_FtoI; otherwise => unreachable; end;